import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines

sys.set_int_max_str_digits(10**6)

N = int(input())
K = int(input())

A = [4,2,8,5,7,1]

answer = A[pow(N,K,6)]
print(answer)